She is the only child of Avner Hershlag, a Israeli-born doctor, and Shelley Stevens, an American-born.
Fancy a snoop around first? Her father was a transportation worker, and Susan lived a fairly comfortable life as a child, but the precocious little redhead had no idea of the life that awaited her.
In one photo, the blonde beauty shows off her bod wearing baby blue booty shorts and a matching bra.
Gia did have the decency to shoot her own pictures of Emma Roberts in her underwear for publicity for the film.